2. Order lifespan: to avoid issues with endless and place-holder orders we introduced orders lifespan. When submitting an order it is automatically set to 15 days lifetime, after that period it will be automatically cancelled. All currently submitted orders (active or inactive) were set to 15 days lifespan as of today. Of course, any remaining funds will be refunded to your wallet in case of auto-cancellation. You will be notified by email before your order will expire so that you will be ready to submit new order if needed.
Thank fucking god.
I doubt about that.
For example, I tested the system by making a small deposit of 10 mBTC (the smallest accepted). Of course, I chose to order hash power using a smaller price than most of the biggest active orders (just testing if I can get a good deal). It turned out that I had to wait too much time to have the order filled by anyone, but this was due to my own pool which rejected the connections (at least this was the message I received into the My Orders page). For short, I cancelled my order, so I know for sure the following things:
1. 14 days isn't of any good -- as time as the mining difficulty increases (and the payout decreases accordingly) too often.
2. If keeping any BTC amount "invested" in such an order, assuming that I would use some better pool (with a low price, though), I would either have :
a). -- too late -- the order filled (but sometimes when I'd already pay too much per TH/day), which would make a double loss (bigger real price plus smaller rewards)
or
b). -- much too late -- the order canceled by the system (in 14 days), which is even worse (my funds blocked for 14 days plus the loss of buying power of blocked funds during these 14 days).
What's worse? You decide it.
Don't tell me that 14 days means that you only lose 0.1 mBTC (their anti-spam fee) plus that 0.5 mBTC (withdrawal fee). In 14 days the mining difficulty increases more than the 2% !
14 days is just offering you a false sense of peace of mind !
I see as reasonable a 3-5 days limit instead of 14 days !!
BTW. If you choose an order with unlimited hashing power you are damn so wrong ... This is because the pools aren't just producing blocks each and every second. If you chose unlimited power (which might be spent / received in minutes, hours, etc), what happens if your pool gets unlucky and produce no blocks during your rent ? You lose your funds in zero or small reward, if any at all.
Edited - reason : NH reversed the 2% fees after I cancelled the test order. Only 0.1 mBTC (anti-spam fee) was deducted as far, which is fine. Probably will follow that 0.5 mBTC. As of now though, I still prefer to just hash with my rig here, instead of rent power from others.